CN103769815A - Electric car rear wheel hub and manufacturing method thereof - Google Patents
Electric car rear wheel hub and manufacturing method thereof Download PDFInfo
- Publication number
- CN103769815A CN103769815A CN201410014669.6A CN201410014669A CN103769815A CN 103769815 A CN103769815 A CN 103769815A CN 201410014669 A CN201410014669 A CN 201410014669A CN 103769815 A CN103769815 A CN 103769815A
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- China
- Prior art keywords
- wheel hub
- hub
- electric vehicle
- rear wheels
- vehicle wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/02—Hubs adapted to be rotatably arranged on axle
- B60B27/04—Hubs adapted to be rotatably arranged on axle housing driving means, e.g. sprockets
Abstract
The invention provides an electric car rear wheel hub and a manufacturing method thereof. The manufacturing method comprises the following steps of step 102, casting an annular hub blank; step 103, machining a benchmark surface by adopting a lower mold wheel lip surface of the hub blank as a positioning surface; step 104, primarily machining the hub blank by adopting the benchmark surface as the positioning surface; step 105, machining a screw hole and an air valve hole in the hub blank; step 106, secondarily machining the hub blank to obtain a hub body; step 107, washing and drying the well-machined hub body; step 109, laminating a magnetic conduction coil of a magnetic yoke onto the inner annular wall surface of the hub body; step 110, installing a magnetic steel plate on the magnetic conduction coil. According to the manufacturing method of the electric car rear wheel hub, the magnetic yoke and the hub are laminated through a shaft pressing machine after being respectively well machined, the magnetic yoke is not treated in high temperature, the deformation is small, the aluminum consumption for casting the hub body can be reduced, and the re-smelting energy consumption and burning rate of aluminum alloy material can be reduced.
Description
Technical field
The present invention relates to electric automobiles, in particular to a kind of rear wheels of electric vehicle wheel hub and manufacture method thereof.
Background technology
At present, in the prior art, electric bicycle rear-wheel hub is due to needs mounted motor, wheel hub center is through-hole structure, is cast with the magnetic guiding cycle (annular irony inserts) of motor yoke on its inwall, and wheel hub is circular ring type substantially, adopt the casting integrated moulding process of inserts, in the time of casting, will after the preheating of wheel hub inserts, put into the insert pocket of mould, the mode of casting by aluminium liquid is filled type to it, and inserts is wrapped in wheel hub.At casting and heat treatment stages: use hawkbill gripping to burn to aglow inserts due to workman and be placed in mould to be cast, can not guarantee that the position that each inserts is placed into meets standard, and also there is circularity over tolerance situation in inserts itself, for guaranteeing that inserts is fully wrapped up by aluminum melt, just need to increase the thickness of feeding part, increase molten aluminium alloy consumption, inserts is ferrous material, wheel hub is aluminum alloy materials, the bi-material coefficient of expansion and shrinkage factor are all different, cause hub cast in the time of the cooling or heat treatment of casting because of cooling velocity and the coefficient of expansion inconsistent, cause the faying face of two kinds of materials easily to produce casting stress or produce lamination, make the faying face adhesion of aluminium and iron insecure, in the machined stage: locate by insert face when machined car locating surface, due to part inserts not just, locating surface is not just, after finally causing wheel hub machined, overall structure not just, there will be wheel hub shake or the quality problems such as overproof of beating, and in following process, needs car to fall part inserts in use, iron filings are sneaked in aluminium bits, and ferro element belongs to harmful element in Birmasil, therefore need aluminium bits to reclaim remelting again, this process has increased the cost of removing ferro element.
Summary of the invention
In order one of to solve the problems of the technologies described above at least, one object of the present invention is to provide a kind of manufacture method of rear wheels of electric vehicle wheel hub, yoke and wheel hub press together by shaft press after manufacturing respectively and processing again, yoke is without high-temperature process, deflection is little, and reduced casting hub body aluminium amount, reclaim refuse energy consumption and burn out rate thereby reduce aluminum alloy materials.
Another object of the present invention is to provide a kind of rear wheels of electric vehicle wheel hub that adopts above-mentioned manufacture method to make.
In view of this, first aspect embodiment of the present invention provides a kind of manufacture method of rear wheels of electric vehicle wheel hub, comprising:
Step 102, casts annular wheel hub base;
Step 104, carries out machined for the first time take datum level as locating surface to wheel hub base;
Step 106, carries out machined for the second time to wheel hub base, makes hub body;
The manufacture method of rear wheels of electric vehicle wheel hub provided by the invention, in cast sections, the magnetic guiding cycle of yoke is not cast together with hub body, only need casting hub part, thereby the feeding that has reduced foundry goods aluminium amount, and then reduce aluminum alloy materials and reclaimed remelting energy consumption and burn out rate, in the machined stage, take counterdie wheel labial surface as locating surface processing datum, because gravitational casting lower die face is one of cooling at first position, its compactness and shape are comparatively regular, can obtain so a comparatively satisfied plane and carry out positioning and clamping mach wheel hub base for the first time, make wheel hub base substantially parallel with technique circle plane, guarantee wheel hub symmetry, even if there is a small amount of distortion, also other steps that can process by entirety are proofreaied and correct, keep wheel hub left and right comparatively symmetrical, make the jitter values can be within the scope of technological requirement, guarantee the machining accuracy of wheel hub base, improve the quality of product, simultaneously, due to yoke and hub body separate machined, in aluminium bits, do not mix iron filings, facilitate the recycling of aluminium bits, and yoke is without high-temperature process, deflection is little, reduce the probability of leakage field, magnetic guiding cycle and the hub body of yoke press together by shaft press, and the combination of yoke and hub body is simple and reliable, can not produce the loosening phenomenon of layering.
In addition, the manufacture method of the described rear wheels of electric vehicle wheel hub in the above embodiment of the present invention can also have following additional technical feature:
Confession embodiment according to the present invention, step 104 specifically comprises:
Confession embodiment according to the present invention, the allowance for finish in step 1041 is 0.5mm.
Confession embodiment according to the present invention, step 106 specifically comprises:
Confession embodiment according to the present invention also comprises between step 107 and step 109:
Confession embodiment according to the present invention, the heating-up temperature scope of described hub body is 50 ℃～70 ℃.
A second aspect of the present invention embodiment provides a kind of rear wheels of electric vehicle wheel hub, the manufacture method of the rear wheels of electric vehicle wheel hub that described rear wheels of electric vehicle hub employing first aspect embodiment provides is made, wherein, described rear wheels of electric vehicle wheel hub comprises: hub body, described hub body is annular, and in described hub body, is provided with screwed hole and valve port; And yoke, described yoke is that annular and pressing are arranged on the internal ring wall face of described hub body, described yoke and described hub body are interference fit.
The manufacture method that rear wheels of electric vehicle wheel hub provided by the invention adopts first aspect to provide is made, and this rear-wheel hub is simple in structure, and the combination between yoke and hub body is reliable, and because yoke is without high-temperature process, deflection is little, and leakage field rate is low.
In addition, the described rear wheels of electric vehicle wheel hub in the above embodiment of the present invention can also have following additional technical feature:
Confession embodiment according to the present invention, described yoke comprises: magnetic guiding cycle and multiple magnetic links, multiple described magnetic links are distributed on the internal ring wall face of described magnetic guiding cycle.
According to the present invention, confession embodiment, is provided with multiple convex tendons on the internal ring wall face of described magnetic guiding cycle, and described convex tendon is described in adjacent two between magnetic links.
According to the present invention, confession embodiment, is provided with groove on the outer shroud wall of described magnetic guiding cycle.
Additional aspect of the present invention and advantage will become in description part below obviously, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is the schematic flow sheet of manufacture method one embodiment of rear wheels of electric vehicle wheel hub of the present invention;
Fig. 2 is the structural representation of rear wheels of electric vehicle wheel hub one embodiment of the present invention;
Fig. 3 is the structural representation of hub body in Fig. 2;
Fig. 4 is C-C sectional structure schematic diagram in Fig. 3;
Fig. 5 is the structural representation of yoke in Fig. 2;
Fig. 6 is B portion structure for amplifying schematic diagram in Fig. 5.
Wherein, in Fig. 1 to Fig. 6, the corresponding relation between Reference numeral and component names is:
1 hub body, 101 screwed holes, 2 yokes, 201 magnetic guiding cycles, 202 magnetic links, 203 convex tendons, 204 grooves, 3 rear-wheel hubs.
The specific embodiment
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, in the situation that not conflicting, the feature in the application's embodiment and embodiment can combine mutually.
A lot of details are set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not subject to the restriction of following public specific embodiment.
The manufacture method of described according to some embodiments of the invention rear wheels of electric vehicle wheel hub is described below with reference to Fig. 1.
As shown in Figure 1, the manufacture method of rear wheels of electric vehicle wheel hub, comprising:
Step 102, casts annular wheel hub base;
Step 104, carries out machined for the first time take datum level as locating surface to wheel hub base; Particularly, step 104 comprises:
Step 106, carries out machined for the second time to wheel hub base, makes hub body; Particularly, step 106 specifically comprises:
The manufacture method of rear wheels of electric vehicle wheel hub provided by the invention, in cast sections, yoke is not cast together with hub body, only need casting hub part, thereby the feeding that has reduced foundry goods aluminium amount, and then reduce aluminum alloy materials and reclaimed refuse energy consumption and burn out rate, in the machined stage, take counterdie wheel labial surface as locating surface processing datum, because gravitational casting lower die face is one of cooling at first position, its compactness and shape are comparatively regular, can obtain so a comparatively satisfied plane and carry out positioning and clamping mach wheel hub base for the first time, wheel hub base is substantially parallel with technique circle plane, guarantee wheel hub symmetry, even if there is a small amount of distortion, also other steps that can process by entirety are proofreaied and correct, keep wheel hub left and right comparatively symmetrical, make the jitter values can be within the scope of technological requirement, guarantee the machining accuracy of wheel hub base, improve the quality of product, simultaneously, due to yoke and hub body separate machined, in aluminium bits, do not mix iron filings, facilitate the recycling of aluminium bits, and yoke is without high-temperature process, deflection is little, reduce the probability of leakage field, yoke and hub body press together by shaft press, and the connected mode of yoke and body is simple, and bonding strength is high.
In a specific embodiment of the present invention, the allowance for finish in step 1041 is 0.5mm.
In a specific embodiment of the present invention, the heating-up temperature scope of hub body 1 is 50 ℃～70 ℃.Heating rear-wheel hub main part endoporus can expanded by heating, is convenient to install yoke, and meanwhile, cooling rear magnetic yoke shrinks with hub body, strengthen yoke and wheel hub originally between bonding strength, thereby extended service life of rear-wheel hub.
Below with reference to Fig. 2 to Fig. 6, described according to some embodiments of the invention rear wheels of electric vehicle wheel hub is described.
The manufacture method of the rear wheels of electric vehicle wheel hub that rear wheels of electric vehicle hub employing above-described embodiment provides is made, wherein, as shown in Figure 2, Figure 3 and Figure 4, rear wheels of electric vehicle wheel hub 3 comprises: hub body 1 and yoke 2, hub body 1 is annular, and in hub body 1, be provided with screwed hole 101 and valve port (not shown) yoke 2 for annular and pressing are arranged on the internal ring wall face of hub body 1, yoke 2 is interference fit with hub body 1.
Rear wheels of electric vehicle wheel hub 3 provided by the invention is simple in structure, and the bonding strength between yoke 2 and hub body 1 is high, and because yoke 2 is without high-temperature process, deflection is little, and leakage field rate is low.
In one embodiment of the invention, as shown in Figure 5 and Figure 6, yoke 2 comprises: magnetic guiding cycle 201 and multiple magnetic links 202, multiple magnetic links 202 are distributed on the internal ring wall face of magnetic guiding cycle 201.
In one embodiment of the invention, as shown in Figure 6, on the internal ring wall face of magnetic guiding cycle 201, be provided with multiple convex tendons 203, and convex tendon 203 is between adjacent two magnetic links 202.The setting of convex tendon 203 is better adsorbed on magnetic guiding cycle 201 magnetic links 202, prevents that magnetic links 202 from skidding off magnetic guiding cycle 201, thereby has increased the dependability of wheel hub.
In one embodiment of the invention, as shown in Figure 6, on the outer shroud wall of magnetic guiding cycle 201, be provided with groove 204, magnetic guiding cycle 201 being pressed together in the process of hub body 1, the contact position of hub body 1 and magnetic guiding cycle 201 is because of crimp, metal in hub body 1, at the interior formation boss of groove 204, has increased the bonding strength between magnetic guiding cycle 201 and hub body 1 like this, thereby has extended the service life of rear-wheel hub 3.
In the present invention, term " multiple " refers to two or more, unless separately there is clear and definite restriction.The terms such as term " installation ", " being connected ", " connection ", " fixing " all should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be to be directly connected, also can indirectly be connected by intermediary.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the description of this description, the description of term " embodiment ", " some embodiment ", " specific embodiment " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a manufacture method for rear wheels of electric vehicle wheel hub, is characterized in that, comprising:
Step 102, casts annular wheel hub base;
Step 103, takes turns labial surface as locating surface processing datum take the counterdie of wheel hub base;
Step 104, carries out machined for the first time take datum level as locating surface to wheel hub base;
Step 105, thread mill drilling and valve port on wheel hub base;
Step 106, carries out machined for the second time to wheel hub base, makes hub body;
Step 107, by the hub body cleaning, drying processing;
Step 109, presses to the magnetic guiding cycle of yoke on the internal ring wall face of hub body;
Step 110, is arranged on magnetic links on described magnetic guiding cycle.
2. the manufacture method of rear wheels of electric vehicle wheel hub according to claim 1, is characterized in that, step 104 specifically comprises:
Step 1041, rough turn counterdie wheel labial surface, counterdie end face, and leave allowance for finish;
Step 1042, car counterdie spoke;
Step 1043, car endoporus;
Step 1044, car patrix end face.
3. the manufacture method of rear wheels of electric vehicle wheel hub according to claim 2, is characterized in that, the allowance for finish in step 1041 is 0.5mm.
4. the manufacture method of rear wheels of electric vehicle wheel hub according to claim 2, is characterized in that, step 106 specifically comprises:
Step 1061, car patrix spoke;
Step 1062, car patrix end face, patrix wheel labial surface;
Step 1063, wheel rim die cavity;
Step 1064, finish turning counterdie end face, counterdie wheel labial surface.
5. according to the manufacture method of the rear wheels of electric vehicle wheel hub described in any one in claim 1 to 4, it is characterized in that, between step 107 and step 109, also comprise:
Step 108, heats the hub body after drying.
6. the manufacture method of rear wheels of electric vehicle wheel hub according to claim 5, is characterized in that, the heating-up temperature scope of described hub body is 50 ℃～70 ℃.
7. a rear wheels of electric vehicle wheel hub, is characterized in that, described rear wheels of electric vehicle hub adopts the manufacture method of the rear wheels of electric vehicle wheel hub as described in any one in claim 1 to 6 to make, and wherein, described rear wheels of electric vehicle wheel hub comprises:
Hub body, described hub body is annular, and in described hub body, is provided with screwed hole and valve port; With
Yoke, described yoke is that annular and pressing are arranged on the internal ring wall face of described hub body, described yoke and described hub body are interference fit.
8. rear wheels of electric vehicle wheel hub according to claim 7, is characterized in that, described yoke comprises:
Magnetic guiding cycle; With
Multiple magnetic links, multiple described magnetic links are distributed on the internal ring wall face of described magnetic guiding cycle.
9. rear wheels of electric vehicle wheel hub according to claim 8, is characterized in that, on the internal ring wall face of described magnetic guiding cycle, is provided with multiple convex tendons, and described convex tendon is described in adjacent two between magnetic links.
10. rear wheels of electric vehicle wheel hub according to claim 9, is characterized in that, on the outer shroud wall of described magnetic guiding cycle, is provided with groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014669.6A CN103769815B (en) | 2014-01-13 | 2014-01-13 | Rear wheels of electric vehicle wheel hub and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014669.6A CN103769815B (en) | 2014-01-13 | 2014-01-13 | Rear wheels of electric vehicle wheel hub and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103769815A true CN103769815A (en) | 2014-05-07 |
| CN103769815B CN103769815B (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410014669.6A Active CN103769815B (en) | 2014-01-13 | 2014-01-13 | Rear wheels of electric vehicle wheel hub and manufacture method thereof |
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| CN (1) | CN103769815B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108621676A (en) * | 2018-05-08 | 2018-10-09 | 信阳同合车轮有限公司 | A kind of production method for wheel and wheel |
| CN111098096A (en) * | 2019-12-31 | 2020-05-05 | 太原重工轨道交通设备有限公司 | Wheel machining method |
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| CN2627724Y (en) * | 2003-07-04 | 2004-07-21 | 常州市裕成电子有限公司 | Wheel hub motor external rotor |
| CN2675889Y (en) * | 2004-02-28 | 2005-02-02 | 贺雷 | Combined flywheel driven by hybrid power |
| CN2758119Y (en) * | 2004-12-03 | 2006-02-15 | 张盈泉 | Wheel hub of electric vehicle brushless motor |
| CN2907044Y (en) * | 2006-06-19 | 2007-05-30 | 李宗智 | Rotor structure of external rotor motor |
| CN101214605A (en) * | 2008-01-14 | 2008-07-09 | 张新颖 | Hub manufacturing technology |
| CN201113582Y (en) * | 2007-08-28 | 2008-09-10 | 梁耀 | Hub-type dc electric machine structure |
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| GB2013244A (en) * | 1977-12-22 | 1979-08-08 | Ardal Og Sunndal Verk | Transporting pots for aluminium production |
| CN2627724Y (en) * | 2003-07-04 | 2004-07-21 | 常州市裕成电子有限公司 | Wheel hub motor external rotor |
| CN2675889Y (en) * | 2004-02-28 | 2005-02-02 | 贺雷 | Combined flywheel driven by hybrid power |
| CN2758119Y (en) * | 2004-12-03 | 2006-02-15 | 张盈泉 | Wheel hub of electric vehicle brushless motor |
| CN2907044Y (en) * | 2006-06-19 | 2007-05-30 | 李宗智 | Rotor structure of external rotor motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108621676A (en) * | 2018-05-08 | 2018-10-09 | 信阳同合车轮有限公司 | A kind of production method for wheel and wheel |
| CN111098096A (en) * | 2019-12-31 | 2020-05-05 | 太原重工轨道交通设备有限公司 | Wheel machining method |
| CN111098096B (en) * | 2019-12-31 | 2021-07-09 | 太原重工轨道交通设备有限公司 | Wheel machining method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103769815B (en) | 2016-06-29 |
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Effective date of registration: 20171031 Address after: 321000 No. 1 Jin Yidong express road, Jindong Economic Development Zone, Zhejiang, Jinhua Patentee after: Zhejiang Jinfei Motorcycle Wheel Co., Ltd. Address before: 321016 Zhejiang city in Jinhua Province Road No. 999 God Patentee before: ZHEJIANG JINFEI E-BIKE WHEEL CO., LTD. |
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Effective date of registration: 20220210 Address after: 321000 Feiyang intelligent manufacturing town, south 2nd Ring West Road, bailongqiao Town, Wucheng District, Jinhua City, Zhejiang Province Patentee after: Zhejiang jinfeizhi friction wheel Co.,Ltd. Address before: 321000 No.1 jinyidong expressway, Jindong Economic Development Zone, Jinhua City, Zhejiang Province Patentee before: ZHEJIANG JINFEI MOTORCYCLE WHEEL Co.,Ltd. |